ambassador was killed more than two weeks ago on 9/11. we'll hear from a top obama adviser, david plouffe, in a moment. but first, joining me now, the republican governor of new jersey chris christie. welcome back to "meet the press." >> happy to be back, david. good morning. >> the key battleground states, nine of them, we've been polling in nine of them, and all nine it's obama advantage across the board. look at ohio, plus seven. virginia, plus five. these are key states. is the race over? >> absolutely not. and that happened pretty quickly, right, david? you saw the change in those polls happen very quickly. and i'm here to tell you it can happen very quickly back the other way, and i think the beginning of that is wednesday night when governor romney for the first time gets on the same stage with the president of the united states and people can make a direct comparison about them and their visions for the future. and wednesday night is the restart of this campaign and i think you'll see the numbers start to move right back in the ot